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Understanding Delta-Sigma Data Converters
TLDR
This chapter discusses the design and simulation of delta-sigma modulator systems, and some of the considerations for implementation considerations for [Delta][Sigma] ADCs.Abstract:
Chapter 1: Introduction.Chapter 2: The first-order delta-sigma modulator.Chapter 3: The second-order delta-sigma modulator.Chapter 4: Higher-order delta-sigma modulation.Chapter 5: Bandpass and quadrature delta-sigma modulation.Chapter 6: Implementation considerations for [Delta][Sigma] ADCs.Chapter 7: Delta-sigma DACs.Chapter 8: High-level design and simulation.Chapter 9: Example modulator systems.Appendix A: Spectral estimation.Appendix B: The delta-sigma toolbox.Appendix C: Noise in switched-capacitor delta-sigma data converters.read more
Citations
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Book ChapterDOI
Analog Signals Conditioning and Discretization
TL;DR: In this chapter, the problems of the measurement in power electronics circuits are highlighted and a method of calculating the resultant signal-to-noise ratio is shown.
Proceedings ArticleDOI
Excess loop delay compensation techniques in continuous-time ΔΣ modulators
TL;DR: A study of a methods used for excess loop delay compensation is presented in this paper and the model used is a third order Single-bit Modulator with the Specification of LTE Network.
Proceedings ArticleDOI
A 12-Bit 33-mW and 96-MHz Discrete-Time Sigma Delta ADC in 130 nm CMOS Technology
Bao Tran,Cuong Huynh +1 more
TL;DR: A 12-bit discrete-time third-order Sigma Delta analog-to-digital converter (ADC) for Sub-GHz transceiver applications and simulations on each corner confirm that the modulator satisfies the specifications even in the worst case.
Proceedings ArticleDOI
Low Order Wideband Multiplierless Comb Compensator
TL;DR: This paper presents a novel multiplierless wideband comb compensator with a low absolute value of passband deviation and a low number of adders, synthesized using sinewave functions resulting in a fourth-order compensator filter.
Proceedings ArticleDOI
Digital OFDM transmitter based on multi-bit delta sigma modulator
Zaijun Hua,Xiangning Fan,Li Tang +2 more
TL;DR: An orthogonal frequency division multiplexing transmitter based on multi-bit delta sigma modulator with switch mode power amplifiers is presented and results show that the error vector magnitude of this transmitter achieves -20.74dB for 64-QAM.
References
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Journal ArticleDOI
A higher order topology for interpolative modulators for oversampling A/D converters
TL;DR: Higher order modulators are shown not only to greatly reduce oversampling requirements for high-resolution conversion applications, but also to randomize the quantization noise, avoiding the need for dithering.
Journal ArticleDOI
Decimation for Sigma Delta Modulation
TL;DR: It is shown that digital filters comprising cascades of integrate-and-dump functions can match the structure of the noise from sigma delta modulation to provide decimation with negligible loss of signal-to-noise ratio.
Journal ArticleDOI
An analysis of nonlinear behavior in delta - sigma modulators
Sasan H. Ardalan,J.J. Paulos +1 more
TL;DR: This paper introduces a new method of analysis for deltasigma modulators based on modeling the nonlinear quantizer with a linearized gain, obtained by minimizing a mean-square-error criterion, followed by an additive noise source representing distortion components.
Book ChapterDOI
The Structure of Quantization Noise from Sigma-Delta Modulation
James C. Candy,O. Benjamin +1 more
TL;DR: Simple algebraic expressions for this modulation noise and its spectrum in terms of the input amplitude are derived and can be useful for designing oversampled analog to digital converters that use sigma-delta modulation for the primary conversion.
Journal ArticleDOI
A fourth-order bandpass sigma-delta modulator
TL;DR: The modulator of a bandpass analog/digital (A/D) converter, with 63 dB signal/noise for broadcast AM bandwidth signals centered at 455 kHz, has been implemented by modifying a commercial digital-audio sigma-delta ( Sigma Delta ) converter.